drm/amd: Don't try to enable secure display TA multiple times

If the securedisplay TA failed to load the first time, it's unlikely
to work again after a suspend/resume cycle or reset cycle and it appears
to be causing problems in futher attempts.

Fixes: e42dfa66d592 ("drm/amdgpu: Add secure display TA load for Renoir")
Reported-by: Filip Hejsek <filip.hejsek@gmail.com>
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/2633
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
index ac9b572..aa69269 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
@@ -2040,6 +2040,8 @@ static int psp_securedisplay_initialize(struct psp_context *psp)
                psp_securedisplay_parse_resp_status(psp, securedisplay_cmd->status);
                dev_err(psp->adev->dev, "SECUREDISPLAY: query securedisplay TA failed. ret 0x%x\n",
                        securedisplay_cmd->securedisplay_out_message.query_ta.query_cmd_ret);
+               /* don't try again */
+               psp->securedisplay_context.context.bin_desc.size_bytes = 0;
        }
 
        return 0;